80081200

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 120

約数和(自身を含む): 208267920

約数和(自身を除く): 128186720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 41, 50, 76, 80, 82, 95, 100, 152, 164, 190, 200, 205, 257, 304, 328, 380, 400, 410, 475, 514, 656, 760, 779, 820, 950, 1025, 1028, 1285, 1520, 1558, 1640, 1900, 2050, 2056, 2570, 3116, 3280, 3800, 3895, 4100, 4112, 4883, 5140, 6232, 6425, 7600, 7790, 8200, 9766, 10280, 10537, 12464, 12850, 15580, 16400, 19475, 19532, 20560, 21074, 24415, 25700, 31160, 38950, 39064, 42148, 48830, 51400, 52685, 62320, 77900, 78128, 84296, 97660, 102800, 105370, 122075, 155800, 168592, 195320, 200203, 210740, 244150, 263425, 311600, 390640, 400406, 421480, 488300, 526850, 800812, 842960, 976600, 1001015, 1053700, 1601624, 1953200, 2002030, 2107400, 3203248, 4004060, 4214800, 5005075, 8008120, 10010150, 16016240, 20020300, 40040600, 80081200]

約数ペア:

[(1, 80081200), (2, 40040600), (4, 20020300), (5, 16016240), (8, 10010150), (10, 8008120), (16, 5005075), (19, 4214800), (20, 4004060), (25, 3203248), (38, 2107400), (40, 2002030), (41, 1953200), (50, 1601624), (76, 1053700), (80, 1001015), (82, 976600), (95, 842960), (100, 800812), (152, 526850), (164, 488300), (190, 421480), (200, 400406), (205, 390640), (257, 311600), (304, 263425), (328, 244150), (380, 210740), (400, 200203), (410, 195320), (475, 168592), (514, 155800), (656, 122075), (760, 105370), (779, 102800), (820, 97660), (950, 84296), (1025, 78128), (1028, 77900), (1285, 62320), (1520, 52685), (1558, 51400), (1640, 48830), (1900, 42148), (2050, 39064), (2056, 38950), (2570, 31160), (3116, 25700), (3280, 24415), (3800, 21074), (3895, 20560), (4100, 19532), (4112, 19475), (4883, 16400), (5140, 15580), (6232, 12850), (6425, 12464), (7600, 10537), (7790, 10280), (8200, 9766)]